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Underground Cable Connection Oil Immersed Distribution Transformer for Urban Grid Projects

Product Summary

Product PositioningA specialized distribution transformer designed for underground cable-connected power distribution systems. Underground Connection Compatibility Suitable for cable-fed MV distribution networks Supports underground urban power infrastructure Flexible cable terminal configuration ...

Key Attributes
Brand Name: TNNPI
Model Number: S11/S13/S20
Place of Origin: Henan, China
Certification: CE,UL,ISO
MOQ: 1 piece
Price: 650-18,000 / piece
Supply Ability: 5000pcs/year
Delivery Time: 7-14 work days
Payment Terms: L/C,D/A,D/P,T/T,Western Union
Standard Packaging: Export standard packaging
Product Custom Attributes
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IEC 61439 Oil Immersed Transformer

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Urban Grid Transformer

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Underground Cable Transformer

Capacity/KVA:
25kVA–5000kVA / Up To 1250A
Rated Voltage:
11kV / 13.8kV / 24kV / 33kV / 34.5kV
Phase:
Three
Rated Frequency:
50Hz/60Hz
Ambient Temperature:
-25°C To +55°C
Application:
Substation
Type Of Cooling:
ONAN Oil Is Self-cooled
Cooling / Insulation:
ONAN / Air Insulated
Short Circuit Withstand:
20kA–31.5kA (3s)
Protection Degree:
IP54 / IP65
Standards:
IEC 60076 / IEC 62271 / IEC 61439
Customization:
Voltage, Capacity, Current, IP Rating, Color, OEM Logo
Product Description

Product Positioning
A specialized distribution transformer designed for underground cable-connected power distribution systems.

Underground Connection Compatibility

  • Suitable for cable-fed MV distribution networks
  • Supports underground urban power infrastructure
  • Flexible cable terminal configuration

Reliable Sealing System

  • Fully sealed oil tank prevents moisture penetration
  • Long maintenance intervals
  • Suitable for underground and outdoor installation

Safety & Protection

  • Pressure relief protection system
  • Temperature monitoring accessories available
  • Enhanced insulation performance

Applications

  • Underground substations
  • Urban cable networks
  • Commercial districts
  • Smart grid projects
Overall Rating
5.0
Based on 50 reviews recently
Rating Snapshot
5
100%
4
0
3
0
2
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1
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All Reviews
K
Kabugo Najib from Bahrain
Nov 5.2025
The quality is very solid, operation is stable, and it is trustworthy!
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C
Creaciones Omar from Armenia
May 23.2024
A significant upgrade over our old units in terms of power quality.
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S
Steven Domenis from Belize
Feb 8.2024
All products have good quality. Customer service is great and coordination is prompt.
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